Binomial Probability Worksheet II



Binomial Probability [pic]

Given the number of trials and the probability of success, determine the probability indicated:

1. [pic] find P(exactly 7 successes)

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2. [pic] find P(exactly 1 success)

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3. [pic] find P(2 or fewer successes)

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Final Answer:___________________

4. [pic] find P(at least 3 successes)

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Final Answer:___________________

10. In a history class, two students take a 10 question multiple choice quiz. Each question has five possible answers.

What is the probability that

a) Colin will get a 6 correct if he guesses an answer to each question

Equation in calculator:_______________________ Answer: ______________________

b) Diana will get 6 correct if she studies so that she has a 75% chance of answering each question correctly.

Equation in calculator:_______________________ Answer: ______________________

12. Approximately 3% of the eggs in a store are cracked. If you buy two dozen eggs, what is the probability that

a) none of your eggs are cracked

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b) exactly two of your eggs are cracked

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c) 2 or fewer eggs are cracked

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Final Answer:___________________

14. The probability the Tim will sink a foul shot is 70%. If Tim attempts 30

foul shots, what is the probability that

a) he sinks exactly 21 shots

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b) he sinks between 18 and 20 shots, inclusive.

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Final Answer:___________________

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